A 47-year-old member asked:
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is 75mg of diphenhydramine an overdose?

1 doctor answer
Dr. Heidi Fowler
24 years experience Psychiatry
75mg diphenhydramine: Is larger than a single dose should be for an adult or child. So it is technically an overdose. Normal doses for a child may be 75 to 150mg per day in divided dose or 150 to 300 mg per day in a divided dose for an adult. Are you considering taking an overdose? If you are -please have a friend or relative take you to the nearest er or call 911. With help your life and problems can improve.
Answered on Jun 18, 2014
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